Two men were using the butane to extract THC oil from the cannabis, Cameron said. The plan was
to put the oil into electronic cigarettes for sale.

The explosion was the second in a week involving attempted oil extraction from marijuana. On
Sunday afternoon, a man told Grove City police that he sprayed butane into a marijuana-packed
2-liter bottle and placed it in a freezer, causing an explosion at a town house on Walden Bluff
Court.

Police there found a marijuana-growing operation that included 15 mature plants, 10 pounds of
packaged marijuana, hallucinogenic mushrooms, 14 guns and information on cultivating marijuana.

William D. Lawrence, 30, was charged with two counts of illegal manufacture of drugs and two
counts of drug possession. Grove City Police Capt. Jeff Pearson said that Lawrence apparently was
planning to use the oil in e-cigarettes.

In the Columbus case, nobody has been charged, but detectives plan to present evidence to a
grand jury. The two men showed up at Ohio State University’s Wexner Medical Center with second- and
third-degree burns on their arms; one man remained there yesterday.